DR series 98.10

DR series 98 10
Numbering:	DR 98 1001-1045
Number:	45
Manufacturer:	Krauss , Krauss-Maffei
Year of construction (s):	1929-1933
Retirement:	1957-1966
Type :	D1 'h2t
Genre :	Gt 45.12
Gauge :	1435 mm ( standard gauge )
Length over buffers:	10,050 mm
Service mass:	54.5 t
Friction mass:	46.2 t
Wheel set mass :	11.7 t
Top speed:	45 km / h
Indexed performance :	331 kW / 450 PSi
Driving wheel diameter:	1006 mm
Rear wheel diameter:	850 mm
Cylinder diameter:	460 mm
Piston stroke:	508 mm
Boiler overpressure:	12 bar
Grate area:	1.36 m²
Superheater area :	18.93 m²
Evaporation heating surface:	60.99 m²
Brake:	Air brake

The class 98 ¹⁰ locomotives (unofficially GtL 4/5) were superheated steam locomotives of the Deutsche Reichsbahn .

After the vehicles of the Bavarian type GtL 4/4 had proven to be very reliable and all had been taken over by the Reichsbahn, it was decided to replicate them. However, since they were quite slow at 40 km / h, the construction was modified and the so-called GtL 4/5 was created with an additional rear running axle , which was connected to the last coupling axle to form a Krauss-Helmholtz steering frame .

Krauss initially delivered five copies of these machines in 1929. Six and ten more locomotives followed in 1930 and 1931. The remaining machines were manufactured by the newly established Krauss-Maffei company in 1932 and 1933.

Despite the additional running axle, the maximum speed could only be increased to 45 km / h, so that later on further modifications and new constructions based on the GtL 4/4 followed ( series 98 ¹¹ (1'D) and LAG No. 87 and 88 (1'D1 ')).

All 45 class 98 ¹⁰ locomotives remained with the Deutsche Bundesbahn after the Second World War . Retirement began in 1957 and was completed in 1966.

literature

• Horst J. Obermayer: Steam locomotives - standard gauge . In: German Railways . Weltbild Verlag, Augsburg 1995, ISBN 3-89350-819-8 , p. 246 .